So last night I pulled a bucket and noticed some brown slime on some of the roots. Because of this I add 75ml of h2o2 to the 55 gal reservoir which is 50% of what the bottler calls for and I woke up this am to droopy leaves. One plant had a leaf that is over turned. The res temp was at 75F so I dropped some frozen 2 liters in it to cool it down. Has anyone had this happen after a mild dose of H2o2. Of not that what could be the issue?